Intersection of Anarchy and Capitalism

From the NoiseBridge hackerspace mailing list:

Last night (Monday) was a hopping night at Noisebridge, as it often is.  Lots of happy people soldering, learning how to make websites, playing with LED lighting, and lots of other cool things.  And a bunch of people donated cash into our donation box.
When I went home, I grabbed the cash from the donation bin.  Someone had put in a $100 bill, inside of an envelope.
Today, I went to Wells Fargo Bank to deposit all the cash, and the teller looked at the $100 bill kinda funny.  "I hope that is real", I said.  He said, "I don’t think it is.  Let me show it to my manager."  She was on the phone, but in less than a glance, she waved her finger and shook her head.  It was counterfeit!  I wish they didn’t have to keep the bill, otherwise I’d give a photo of it.  The printing was really good!  But it was missing a watermark, and though they added a little strip inside the bill, the strip was not perpendicular to the edges of the bill.
So, the teller deposited the rest of the $53 into the Noisebridge account.  "Thanks for taking this so well.", the teller said.

Another replied:

I just hope nobody "made change" and took $100 worth of twenties when they put that fake bill in there.